Philips

An optical measurement device (100) for obtaining optical measurements from a subject sampling region (110), is provided. The optical measurement device includes: at least one optical source (120, 120') configured to generate optical radiation; an optical waveguide (130); an optical splitter (140) or circulator (150); and at least one optical detector (160). The at least one optical source (120, 120') is configured to couple the optical radiation into a proximal end of the optical waveguide (130). The optical splitter (140) or circulator (140) is arranged at a distal end of the optical waveguide (130) and is configured to output at least a portion of the optical radiation for irradiating the subject sampling region (110), and to receive at least a portion of the outputted optical radiation that has irradiated the subject sampling region, and to couple at least a portion of the received portion back into the distal end of the optical waveguide (130). The at least one optical detector (160) is arranged at a proximal end of the optical waveguide (130) and is configured to detect at least a portion of the optical radiation that has returned to the proximal end of the optical waveguide via the distal end of the optical waveguide.

A method (100) for ECG calibration, comprising: obtaining (120), while a body of an individual is positioned in a first posture, both: (i) first posture data from a posture component (280); and (ii) first ECG data from an ECG monitor (290); obtaining (130), while the body of the individual is positioned in a second posture different from the first posture, both: (i) second posture data from the posture component; and (ii) second ECG data from the ECG monitor; extracting (140), from the first ECG data, a plurality of first ECG waveforms; extracting (150), from the second ECG data, a plurality of second ECG waveforms; generating (160), from the extracted plurality of first ECG waveforms, a first ECG waveform baseline; generating (170), from the extracted plurality of second ECG waveforms, a second ECG waveform baseline; and reporting (180) one or both of the first ECG waveform baseline and the second ECG waveform baseline.

The invention relates to a method of magnetic resonance (MR) imaging, comprising: acquiring MR imaging data in two or more separate acquisition steps, each acquisition step covering a respective spatially distinct or partially overlapping sub-volume of a three dimensional volume of a subject; selecting or generating a reference image defining a target spatial coordinate system; and reconstructing at least one image representation of the sub-volumes using a motion- compensated reconstruction process comprising either one of: independently reconstructing respective image representations of the sub-volumes from the MR imaging data and transforming at least one of the reconstructed image representations based on the reference image such that all reconstructed image representations are geometrically consistent with the target spatial coordinate system; or jointly reconstructing a common image representation of the three-dimensional volume from the MR imaging data of all acquisition steps, wherein the reconstruction involves a geometric mapping to the reference image such that the common image representation is geometrically consistent with the target spatial coordinate system. Moreover, the invention relates to an MR imaging system configured to perform the method.

A method comprising accessing a clinical database recording historical ECG signal recordings and epidemiological data for a patient population, clustering waveform features extracted from the historical ECG signal recordings according to morphology characteristics to derive ECG waveform morphology clusters, correlating each morphology cluster with epidemiological information associated with corresponding patients, identifying epidemiological features correlated with each cluster, and creating a data structure associating ECG waveform feature morphology with correlated epidemiological features.

Proposed concepts thus aim to provide schemes, solutions, concept, designs, methods and systems pertaining to identifying noisy electrodes of an ECG measurement system. In particular, embodiments aim to provide a method for identifying noisy electrodes of an ECG measurement system by analyzing multiple ECG lead signals, and then, using a known correspondence between each lead signal and the pair of electrodes which generated it, identifying a noisy electrode based on noise indicator values of the lead signals. By identifying a noisy electrode, rather than merely identifying a noisy lead signal, said electrode can be directly dealt with (e.g., repositioned, replaced, or discarded), facilitating a more effective use of the ECG monitoring system.

The present invention relates to a core body temperature estimation device, a core body temperature estimation system and a core body temperature estimation method for estimating a user's core body temperature and to a sensor device for measuring optical and thermal features of a user's skin- and/or subcutaneous tissue. The core body temperature estimation, CBT, device for estimating a user's CBT comprises an input unit configured to obtain first temperature data comprising information about a skin- and/or subcutaneous tissue temperature of the user, second temperature data comprising information about a second temperature, and optical data comprising information about an optical transmission and/or absorption of the user's skin- and/or subcutaneous tissue; a processing unit configured to estimate a thickness of the user's skin- and/or subcutaneous tissue based on the optical data and to estimate the user's CBT based on the first temperature data, the second temperature data and the estimated thickness, and an output unit configured to provide CBT information comprising information about the estimated CBT.

There is provided a computer-implemented method of providing user guidance for a skin treatment device to perform skin treatment. The computer-implemented method comprises: establishing a connection between the skin treatment device and a processing device performing the computer-implemented method; determining a start of a treatment with the skin treatment device at a first point of time; determining the connection is interrupted after the first point of time; re-establishing the connection; determining whether a time period between the first point of time and a second point of time exceeds a threshold, wherein the second point of time is when the connection has been re-established; in case the time period does not exceed the threshold, receiving use data from the skin treatment device, and adapting the user guidance based on the use data; in case the time period exceeds the threshold, not adapting the user guidance based on the use data, wherein the use data is representative of one or more skin treatment sessions performed with the skin treatment device during the time period; generating a guidance signal representative of the user guidance.

The described technology pertains to personal care devices equipped with gas measurement technologies for monitoring oral-systemic health. Technology addresses the challenge of accurately measuring gas compounds in exhaled breath, which can be confounded by ambient air gases. The solution involves a device (100) with a first sensor (101) for gas measurement, a proximity detection means (102), and a processor (103) that controls background and exhaled gas measurements. The processor processes these measurements to provide a gas output signal representing user-produced gases. This system enhances health assessments by distinguishing between ambient and user-produced gases, offering non-invasive, real-time monitoring. The device is particularly useful in personal care applications, such as toothbrushes, where consistent monitoring is beneficial.

The present invention provides a method for performing whole-body, WB, amide proton transfer weighted/chemical exchange saturation transfer, APTw/CEST, magnetic resonance imaging, MRI, the method comprising the following method steps: S1) B0 magnetic field shimming for B0 magnetic field homogenization and B1 radiofrequency field shimming for B1 radiofrequency field homogenization at multiple body positions and/or multiple imaging stations, S2) measuring data including coil sensitivity, resonance frequency, B0 magnetic field maps, and B1 radiofrequency field maps at multiple body positions and/or multiple imaging stations, S3) adapting a sequence operation protocol for the APTw/CEST locally at multiple body positions and/or multiple imaging stations, based at least in part on the measured data, S4) acquiring APTw/CEST MRI data at multiple body positions and/or multiple imaging stations on the basis of the adapted sequence operation protocol, S5) processing the acquired APTw/CEST MRI data for visualization, and S6) visualizing the processed APTw/CEST MRI data. In this way, a method is provided for performing whole-body APTw/CEST MRI that enables reliable, time-efficient, and spatially consistent imaging across multiple body regions.

A system and method for monitoring a subject. A first set of physiological data is obtained and processed, using a trained machine-learning algorithm, to generate a second set of physiological data. The trained machine-learning algorithm is trained using subject-specific training data comprising physiological data corresponding to the first set of physiological data and physiological data corresponding to the second set of physiological data.